Definition of Productivity

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Definition of Productivity
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Productivity Definition

• Productivity is the relationship between the
  outputs generated from a system and the inputs
  that are used to create those outputs.
  Mathematically
• O
• P
• I

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Systems Concept
inputs
outputs
Customers
transformations
Land people capital facilities equipment tools ene
rgy materials information
Goods and services
SYSTEM
O I
productivity
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Mathematically, How Can We Increase Productivity?
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Measuring Productivity

• Static PO/I in a given period of time (t).
  Useful for benchmarking purposes.
• Dynamic p(1)O(1)/I(1) p(2)O(2)/I(2) then
  p(2)/p(1) yields a dimensionless index that
  reflects change in productivity between periods.
  ((p(2)-p(1))/p(1))100 yields the percentage
  change between periods.

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Measuring Productivity (Continued)

• Partial-Factor Uses a single I factor e.g.,
  output/labor-hour, sales/employee
• Multi-Factor Uses more than one I factor
  e.g. output/direct costs (labor, materials, and
  overhead).
• Total-Factor Uses all I factors.
• (Note Total-Factor captures trade-offs
  between input factors.)

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Measurement Problems

• Multiple products/services (aggregation-O)
• Varied categories, types, and levels of input
  resources (aggregation-I)
• Price/cost changes of outputs inputs
• Redesigned products, services, processes
• Hard-to-measure factors (e.g., quality)

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Application of Productivity Measures

• Individual level
• Group level
• Department level
• Corporate level
• National level
• Global level

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Global-Level Productivity

• Why are global-level productivity measures
  important?
• How do we compare productivity among nations?
• How can a nation increase productivity in a
  global economy?

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Why is National Productivity Important?
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Labor Productivity - Percent Change from Previous
Year
2001 2002 2003 1994 - 2003
Business Sector 2.2 4.9 4.5 2.6
Non-Farm Sector 2.1 5.0 4.4 2.6
Manufacturing 2.2 7.2 5.1 4.2
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Other Measures Affecting Productivity

• Efficiency
• Effectiveness
• Quality
• Quality of Work Life
• Innovation

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Efficiency

• Measures the resources expected to be consumed to
  the resources actually consumed.
• Hence, it focuses on the input side of the
  system. (To what degree did the system utilize
  the right things.)

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Effectiveness

• Measures what the system sets out to accomplish
  (objective) with what was actually accomplished
  plan vs. actual
• Hence, effectiveness is an output measure. (Is
  the output right - right quality, right
  quantity, on time, etc.)

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Quality

• Degree to which the outputs (products and
  services) from the system conform to requirements
  or meet customer expectations.
• The focus is on quality attributes (e.g.,
  conformance, performance, convenience,
  responsiveness, perceived quality.)

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Quality of Work Life (QWL)

• Measures the way that employees in a system
  respond to the socio-technical aspects of that
  system.

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Innovation

• Measures the applied creativity of the system.
• Relates to the design and development of improved
  products, services, and processes.

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How Do Those Other Measures Affect Productivity?